Caenorhabditis elegans
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA335585 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:microRNA decay analysis in the first larval stage Caenorhabditis elegans
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Project description:The nematode Caenorhabditis elegans (C. elegans) is often used as a model organism to study cell and developmental biology. Quantitative mass spectrometry has only recently been performed in C. elegans and, so far, most studies have been done on adult worm samples. Here we use quantitative mass spectrometry to characterise protein level changes across the four larval developmental stages (L1-L4) of C. elegans, in biological triplicate. In total, we identify 4,130 proteins and quantify 1,541 proteins that were identified across all four stages in all three biological repeats with at least 2 unique peptides per protein. Using hierarchical clustering and functional ontological analyses, we identify 21 protein groups containing proteins with similar protein profiles across the four stages, and highlight the most overrepresented biological functions in each of these protein clusters. In addition, we use the dataset to identify putative larval stage specific proteins in each individual developmental stage, as well as in the early and late developmental stages. In summary, this dataset provides a system-wide analysis of protein level changes across the four C. elegans larval developmental stages, which serves as a useful resource for the worm development research community.
2017-12-04 | PXD006676 | Pride
Project description:Comparison of gene expression profiles from C. elegans mutant strains (MIR73, MIR75 or MIR77) overexpressing genes involved in proline metabolism (B0513.5 or T22H6.2) with wildtype strain (N2) at 5 days after L4 larvae stage. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
2021-10-19 | GSE110842 | GEO
Project description:microRNAs (miRNAs) constitute a class of small non-coding RNAs (~22nt). They are thought to be generally stable with half-lives of many hours or even days. However, several miRNAs have been reported to decay rapidly in specific situations. In order to examine miRNA stability on a global scale, we quantify relative decay rates of miRNA in first larval stage C. elegans worms that are treated with a transcription inhibitor alpha-amanitin by deep sequencing. Several miRNAs including members of the miR-35 and miR-51 families exhibit accelerated decay. Moreover, biogenesis of miRNAs involves generation of a miRNA duplex intermediate consisting of the miRNA guide strand (miR) and the miRNA passenger strand (miR*). miR and miR* names were originally assigned based on the relative abundance of each strand, with the less abundant strand presumed to be inactive, and thus the miR*. However, subsequent research showed that at least individual miR*s can have biological activity. Our sequencing data reveal that miR*s, operationally defined on the basis of their relative abundance at time point t=1h, are substantially less stable than miRs. This would appear to support the notion that miR*s mainly constitute processing byproducts rather than a less abundant class of functional miRNAs. Examination of microRNA decay rates in the first larval stage C. elegans worms.
2014-02-06 | E-GEOD-46753 | biostudies-arrayexpress
Project description:ChIP-chip analysis of NFI-1 in wildtype (N2) mixed stage C. elegans
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Project description:Caenorhabditis elegans ALA neuron transcriptome (wild-type, mid-L4 larval stage)
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Project description:Expression data from L3 stage Caernorhabditis elegans after arsenic exposure
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